* {
  box-sizing: border-box;
}
html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
hgroup,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}
a {
  text-decoration: none;
  cursor: pointer;
}
/* HTML5 display-role reset for older browsers */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
  display: block;
}
body {
  font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.42857143;
  color: #333;
  overflow-x: hidden;
}
html,
body {
  height: 100%;
}
ol,
ul {
  list-style: none;
}
blockquote,
q {
  quotes: none;
}
blockquote:before,
blockquote:after,
q:before,
q:after {
  content: '';
  content: none;
}
html,
body {
  height: 100%;
}
.body {
  height: 100%;
  background: url(../images/bg.png) no-repeat center;
  background-size: cover;
}
.download_title {
  text-align: center;
  padding-top: 10%;
}
.download_title img {
  width: 80%;
  height: auto;
}
.download_app {
  margin-top: 20%;
}
.download_app .phone_bg {
  margin: 0 auto;
  width: 3rem;
  height: 4.45rem;
  background: url(../images/phone.png) no-repeat center;
  background-size: cover;
  text-align: center;
}
.download_app .phone_bg .logo {
  width: 70%;
  height: auto;
  margin-top: .65rem;
}
.download_app .phone_bg .download_btn {
  display: block;
  width: 1.45rem;
  margin: .5rem auto 0 auto;
}
.download_app .phone_bg .download_btn img {
  width: 1.45rem;
  height: auto;
}
